869749152 has 24 divisors (see below), whose sum is σ = 2283091776. Its totient is φ = 289916352.

The previous prime is 869749141. The next prime is 869749159. The reversal of 869749152 is 251947968.

869749152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 869749095 and 869749104.

It is not an unprimeable number, because it can be changed into a prime (869749159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4529848 + ... + 4530039.

It is an arithmetic number, because the mean of its divisors is an integer number (95128824).

Almost surely, 2^869749152 is an apocalyptic number.

It is an amenable number.

869749152 is an abundant number, since it is smaller than the sum of its proper divisors (1413342624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

869749152 is a wasteful number, since it uses less digits than its factorization.

869749152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9059900 (or 9059892 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 51.

The square root of 869749152 is about 29491.5098291017. The cubic root of 869749152 is about 954.5485113108.

The spelling of 869749152 in words is "eight hundred sixty-nine million, seven hundred forty-nine thousand, one hundred fifty-two".